Heat Gain from Electrical Motors in Continuous Operation

Heat transferred from an electrical motor to the ambient room - different locations of fan and motor

Sponsored Links

Electrical motors in air condition systems contributes to the heat loads in air condition systems and will influence on the dimensions of cooling equipment.

Heat gain from electric motors in fans

Heat loads from electrical motors and fans in different locations can be estimated from the table below:

Shaft Output (kW)	Full Load Electrical Motor Efficiency - η - (%)	Electrical Motor Input (kW)	Location of Fan and Motor
Shaft Output (kW)	Full Load Electrical Motor Efficiency - η - (%)	Electrical Motor Input (kW)	1 Motor and Fan in the Inlet Air Flow or in the Room (kW)	2 Motor Outside the Air Flow or Outside the Room. The Fan in the Inlet Air Flow or in the Room (kW)	3 Motor in the Room. The Fan in the Outlet Air Flow (kW)
0.05	40	0.13	0.13	0.05	0.08
0.07	46	0.15	0.15	0.07	0.08
0.10	55	0.18	0.18	0.10	0.08
0.14	60	0.23	0.23	0.14	0.09
0.20	64	0.31	0.31	0.20	0.11
0.28	66	0.42	0.42	0.28	0.14
0.40	70	0.60	0.60	0.40	0.20
0.56	72	0.78	0.78	0.56	0.22
0.80	76	1.05	1.05	0.80	0.25
1.1	80	1.38	1.38	1.1	0.28
1.6	80	2.0	2.0	1.6	0.40
2.5	81	3.1	3.1	2.5	0.60
4.0	82	4.9	4.9	4.0	0.90
5.6	84	6.7	6.7	5.6	1.1
8.0	84	9.5	9.5	8.0	1.5
11.2	86	13.0	13.0	11.2	1.8
16	87	18.4	18.4	16	2.4
20	88	22.7	22.7	20	2.7
25	89	28.0	28.0	25	3.0
32	89	36.0	36.0	32	4.0
40	89	45.0	45.0	40	5.0
50	90	56.0	56.0	50	6.0
63	90	70.0	70.0	63	7.0
80	90	89.0	89.0	80	9.0
100	91	110	110	100	10.0

1 kW = 1000 Watts = 3412 Btu/h = 737.6 / 550 British hp = 1.341 British hp = 10³/9.80665 kg_f m/s = 737.6 ft lb_f/s = 10³/(9.80665 75) metric hp

Tag Search

en: heat gain electrical motors emission room
es: la ganancia de calor motores eléctricos Sala de emisión
de: Wärmegewinn Elektromotoren Emissionsraum

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse!

Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.

Heat Gain from Electrical Motors in Continuous Operation

Heat transferred from an electrical motor to the ambient room - different locations of fan and motor

Related Topics

Related Documents

Tag Search

Search the Engineering ToolBox

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

Privacy

Advertise in the ToolBox

Citation

Scientific Online Calculator